diff --git a/docker/scripts/install-owrx-tools.sh b/docker/scripts/install-owrx-tools.sh
index 9018c37..492302c 100755
--- a/docker/scripts/install-owrx-tools.sh
+++ b/docker/scripts/install-owrx-tools.sh
@@ -41,7 +41,8 @@ cd ..
 rm -rf csdr
 
 git clone https://github.com/jketterl/digiham.git
-cmakebuild digiham 0.3.0
+# latest develop as of 2021-04-20 (updated dc_block for M17)
+cmakebuild digiham 8c98b4de3d7c685c0d0bac5adf0e08f08e603a7f
 
 apt-get -y purge --autoremove $BUILD_PACKAGES
 apt-get clean